I too have had both I also liked the fairing on the HD better as the IS fairing is dated. But sold the HD and still have both my standard and IS valks

the biggest two problems I had with the HD was#1 passenger room when riding two up the wife was up against me and I couldn't move around the way I can on the VALK where I hardly know she is back there.
#2 power as you stated without major $$$ upgrades it wouldn't pull a greasy string out of a cats arse
